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M16C User Manual.pdf

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Programmable I/O PortMitsubishi microcomputers<strong>M16C</strong> / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTERP82 to P84Pull-up selectionDirection registerData busPort latch(Note1)Input to respective peripheral functionsPull-up selectionP55, P62, P66, P77,P91, P97Data busDirection registerPort latch(Note1)Input to respective peripheral functionsPull-up selectionP63, P67Direction register"1"Data busPort latchOutput(Note1)P85Data busNMI interrupt input(Note1)P70, P71Direction register"1"Port latchOutput(Note2)Input to respective peripheral functionsNote :1Note :2symbolizes a parasitic diode.Do not apply a voltage higher than Vcc to each port.symbolizes a parasitic diode.Figure 1.23.2. Programmable I/O ports (2)169

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